<modsnip: quoted post was removed>
At this point in sleuthing (or any LE endeavor) there are better heads than ours considering different possible scenarios. If in fact LS left her phone at home as claimed, then perhaps that gives a lie to other statement about taking a selfie in the truck as they were living (apparently). There are definitely LE people who are keeping track of her ambiguous, potentially contradictory statements. So can we. No one should rest a whole case on the fact that a suspect is lying.
But it is relevant and notable.
I don't know what else her phone-leaving is associated with (or even if it's true), but it's interesting that she pre-splains it. Then says she was tracked by her watch.
Aside from the changing story, there is an anticipation that eventually we'll know whether she took her phone the next day. We can hypothesize about that too. If in fact the DA has evidence that she's leaving her phone turned off or unavailable on Jan 27 and 28, don't you think they'll use that at the preliminary hearing? I know I would, if I were the prosecution.